eGyro – North Seeking Wireline Gyro Survey

The eGyro – Wireline North Seeking Gyro instrument is an accurate and reliable downhole directional survey and orientation tool. Comprising of the latest technology, the system uses gyro compassing method to find borehole azimuth.

As it is a North Seeking Gyro, all measurements are referenced to geographic north. Unlike other downhole survey or magnetic tools, the eGyro is not affected by magnetic interference. It can be run inside casing, tubing, drill pipe and magnetically disturbed ground.

This 1.70″ (43.2 mm) diameter tool can be run in a variety of applications from shallow borehole to deep borehole surveying, single shot/multi shot, slim hole casing, orientation, whip stock kick-off and downhole motor orientation.

Some of the benefits of Huracan’s gyro service.

Not affected by magnetic interference
All azimuth measurements are in reference to geographical north
No drift. Each survey is independent and not in relation to the previous survey
No field calibration or roll test required before each survey
Collar azimuth not required. Only latitude of the hole
No sight alignment is required
Speed between stations 120m/min
Short, light weight tool, easily transported to and from location
Very accurate, rugged and reliable

North Seeking Gyro PDF

Specifications

Azimuth accuracy of +/ 1.0° in inclination range from 1.0° - 70.0° (from vertical)
Repeatability in azimuth +/ 0.5°
Inclination accuracy of +/ 0.1°
Gravity toolface accuracy of +/ 0.1°
Gyroscopic toolface accuracy of +/ 1.0° inclination range from 0.0° 1.0° (from vertical)
Temperature rating: 30°C to +100°C ( 22°F to +212°F)
Pressure rating: 103Mpa (15,000psi)

Dimensions

OD 1.70" (43.2 mm)
Length 1.75 m (68.90”) – Slick, 3.25 m (127.95”) – Centralised
Weight 15 kg (33.07 lb)